12-5 CABURETOR
12-5-1 FUNCTION and COMPONENTS (See Fig. 12-28)
1)Float system
The float chamber is located direct& under the carburetor. Flat and needle valves. maintain a constant id level inside the float chamber.
The fuel in the tank tlo\vs into the float chamber from the needle valve. When a certain quantity of fuel enters the chamber. the float rises. When the buoyax)- oi the flat
Schematic diagram of the fuel system
CHOKE - | BY PASS; | THROTTLE | OUTLET | |
r VALVE |
PILOT AIR JET
PILOT JETJ’
FLOAT
.“.- MAIN NEEDLE
MAIN AIR JET? | VALVE |
FLOAT i | ‘MAIN | JET |
Fig.